Feature #33: Enhanced Device Importing

Dynamic device importing. better input parsing and 5 additional import
fields.

Disco.Services/Devices/Importing/DeviceImportDatabaseCache.cs

@@ -0,0 +1,42 @@
+using Disco.Data.Repository;
+using Disco.Models.Repository;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Disco.Services.Devices.Importing
+{
+    internal class DeviceImportDatabaseCache : IDeviceImportCache
+    {
+        private DiscoDataContext Database;
+
+        public DeviceImportDatabaseCache(DiscoDataContext Database)
+        {
+            this.Database = Database;
+        }
+
+        public Device FindDevice(string DeviceSerialNumber)
+        {
+            return Database.Devices.FirstOrDefault(d => d.SerialNumber == DeviceSerialNumber);
+        }
+
+        public IEnumerable<Device> Devices
+        {
+            get { return Database.Devices; }
+        }
+
+        public IEnumerable<DeviceModel> DeviceModels
+        {
+            get { return Database.DeviceModels; }
+        }
+
+        public IEnumerable<DeviceProfile> DeviceProfiles
+        {
+            get { return Database.DeviceProfiles; }
+        }
+
+        public IEnumerable<DeviceBatch> DeviceBatches
+        {
+            get { return Database.DeviceBatches; }
+        }
+    }
+}